SAN FRANCISCO, CA - AUGUST 16:  U.S. secretary of the Navy Ray Mabus puts on a hat for the new USNS Harvey Milk during a ship naming ceremony on August 16, 2016 in San Francisco, California. U.S. Navy officials announced plans to name a new replenishment oiler ship after slain civil rights leader Harvey Milk. Six new ships in the class with be named after civil and human rights leaders.  (Photo by Justin Sullivan/Getty Images)